无法在python的pycuda编程中的SourceModule中使用rpy2

Question

我是pycuda编程和尝试使用python中的代码this的新手。

我更改了参数，如下面的代码所示。 rpy2用于从python调用R函数。但是在SourceModule ro内部会出错。

import rpy2.robjects as ro
import pycuda.driver as cuda
import pycuda.autoinit
from pycuda.compiler import SourceModule
import numpy
data="/path/some.json" 
path="/path/to/the/R/function"


data_gpu = cuda.mem_alloc(len(data))
path_gpu = cuda.mem_alloc(len(path))

data_bytes=ecgdata.encode('utf-8')
path_bytes=path.encode('utf-8')

cuda.memcpy_htod(data_gpu, data_bytes)
cuda.memcpy_htod(path_gpu, path_bytes)



mod = SourceModule("""
  __global__ void Analysis(char **ecgdata,char **path)
  {
    int idx = threadIdx.x + threadIdx.y*4;
    r=ro.r
    r.source("/path/to/Rprogram.R")
    p[idx]=r.analysis_ver15(data,path)  //R function
    return p
  }
  """)

func = mod.get_function("Analysis")

func(ecgdata_gpu,path_gpu, block=(4,4,1))

a_doubled = numpy.empty_like(data)
cuda.memcpy_dtoh(a_doubled, data_gpu)
print (a_doubled)
print (data)

  

错误：pycuda.driver.CompileError：的nvcc编译   /tmp/tmpi6szkm5g/kernel.cu失败       [命令：nvcc --cubin -arch sm_50 -I / home / anaconda3 / lib / python3.6 / site-packages / pycuda-2017.1-py3.6-linux-x86_64.egg / pycuda / cuda   kernel.cu]       [stderr：       kernel.cu（6）：错误：标识符“ r”未定义

kernel.cu(6): error: identifier "ro" is undefined

kernel.cu(7): error: expected a ";"

kernel.cu(10): warning: parsing restarts here after previous syntax error

kernel.cu(5): warning: variable "idx" was declared but never referenced

3 errors detected in the compilation of "/tmp/tmpxft_00002e53_00000000-7_kernel.cpp1.ii".

我正在处理字符串，而不是整数或浮点数。这种方法是否错误？任何帮助表示赞赏。